Benzo(a)pyrene in an iron and steel works.
D000397:Air Pollution / Q000032:analysis*; D000497:Alloys; D001580:Benzopyrenes / Q000032:analysis*; D002845:Chromatography; D004781:Environmental Exposure; D007501:Iron; D008669:Metallurgy; D012621:Seasons
D000497:Alloys; D001580:Benzopyrenes; D007501:Iron